123311440204 has 12 divisors (see below), whose sum is σ = 216014554224. Its totient is φ = 61592996144.

The previous prime is 123311440177. The next prime is 123311440271. The reversal of 123311440204 is 402044113321.

123311440204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123311440204² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15676567 + ... + 15684430.

It is an arithmetic number, because the mean of its divisors is an integer number (18001212852).

Almost surely, 2^123311440204 is an apocalyptic number.

It is an amenable number.

123311440204 is a deficient number, since it is larger than the sum of its proper divisors (92703114020).

123311440204 is a wasteful number, since it uses less digits than its factorization.

123311440204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31361984 (or 31361982 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 123311440204 its reverse (402044113321), we get a palindrome (525355553525).

The spelling of 123311440204 in words is "one hundred twenty-three billion, three hundred eleven million, four hundred forty thousand, two hundred four".